A slow-moving vehicle sign warns drivers that vehicle ahead will be traveling at km/ or less. __ km/hr Select one: a. 30 b. 50 0.40 d. 20

The answer is **c. 40**.<br /><br />A slow-moving vehicle sign typically warns that the vehicle ahead is traveling at 40 km/h (25 mph) or less. While specific speeds may vary slightly by jurisdiction, 40 km/h is the most common standard used.<br />